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Finding the Fourth Proportional to 98,570.10, 136,026.87 and 53,248.10

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Solution

The fourth proportional to 98,570.10, 136,026.87 and 53,248.10 is: 73,482.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,570.10 : 136,026.87 = 53,248.10 : x
  2. Step 2: Convert to fraction form
    98,570.10/136,026.87 = 53,248.10/x
  3. Step 3: Cross multiply
    98,570.10x = 136,026.87 × 53,248.10
  4. Step 4: Simplify right side
    98,570.10x = 7,243,171,496.63
  5. Step 5: Solve for x
    x = 7,243,171,496.63/98,570.10
  6. Step 6: Final answer
    x = 73,482.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.