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Finding the Fourth Proportional to 98,642.60, 136,094.67 and 60,362.20

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Solution

The fourth proportional to 98,642.60, 136,094.67 and 60,362.20 is: 83,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,642.60 : 136,094.67 = 60,362.20 : x
  2. Step 2: Convert to fraction form
    98,642.60/136,094.67 = 60,362.20/x
  3. Step 3: Cross multiply
    98,642.60x = 136,094.67 × 60,362.20
  4. Step 4: Simplify right side
    98,642.60x = 8,214,973,689.47
  5. Step 5: Solve for x
    x = 8,214,973,689.47/98,642.60
  6. Step 6: Final answer
    x = 83,280.18

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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.