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Finding the Fourth Proportional to 125,059.41, 172,598.72 and 74,068.16

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Solution

The fourth proportional to 125,059.41, 172,598.72 and 74,068.16 is: 102,223.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,059.41 : 172,598.72 = 74,068.16 : x
  2. Step 2: Convert to fraction form
    125,059.41/172,598.72 = 74,068.16/x
  3. Step 3: Cross multiply
    125,059.41x = 172,598.72 × 74,068.16
  4. Step 4: Simplify right side
    125,059.41x = 12,784,068,375.42
  5. Step 5: Solve for x
    x = 12,784,068,375.42/125,059.41
  6. Step 6: Final answer
    x = 102,223.96

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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.