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Finding the Fourth Proportional to 61,164.60, 91,746.90 and 42,502.20

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Solution

The fourth proportional to 61,164.60, 91,746.90 and 42,502.20 is: 63,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,164.60 : 91,746.90 = 42,502.20 : x
  2. Step 2: Convert to fraction form
    61,164.60/91,746.90 = 42,502.20/x
  3. Step 3: Cross multiply
    61,164.60x = 91,746.90 × 42,502.20
  4. Step 4: Simplify right side
    61,164.60x = 3,899,445,093.18
  5. Step 5: Solve for x
    x = 3,899,445,093.18/61,164.60
  6. Step 6: Final answer
    x = 63,753.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.