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Finding the Fourth Proportional to 100,506,064.60, 140,899,809.20 and 100,506,064.60

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Solution

The fourth proportional to 100,506,064.60, 140,899,809.20 and 100,506,064.60 is: 140,899,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,506,064.60 : 140,899,809.20 = 100,506,064.60 : x
  2. Step 2: Convert to fraction form
    100,506,064.60/140,899,809.20 = 100,506,064.60/x
  3. Step 3: Cross multiply
    100,506,064.60x = 140,899,809.20 × 100,506,064.60
  4. Step 4: Simplify right side
    100,506,064.60x = 14,161,285,325,582,872
  5. Step 5: Solve for x
    x = 14,161,285,325,582,872/100,506,064.60
  6. Step 6: Final answer
    x = 140,899,809.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.