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Finding the Fourth Proportional to 157,370.83, 217,164.95 and 89,387.60

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Solution

The fourth proportional to 157,370.83, 217,164.95 and 89,387.60 is: 123,351.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,370.83 : 217,164.95 = 89,387.60 : x
  2. Step 2: Convert to fraction form
    157,370.83/217,164.95 = 89,387.60/x
  3. Step 3: Cross multiply
    157,370.83x = 217,164.95 × 89,387.60
  4. Step 4: Simplify right side
    157,370.83x = 19,411,852,989.87
  5. Step 5: Solve for x
    x = 19,411,852,989.87/157,370.83
  6. Step 6: Final answer
    x = 123,351.02

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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.