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Finding the Fourth Proportional to 334,734.76, 502,101.87 and 85,416.76

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Solution

The fourth proportional to 334,734.76, 502,101.87 and 85,416.76 is: 128,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,734.76 : 502,101.87 = 85,416.76 : x
  2. Step 2: Convert to fraction form
    334,734.76/502,101.87 = 85,416.76/x
  3. Step 3: Cross multiply
    334,734.76x = 502,101.87 × 85,416.76
  4. Step 4: Simplify right side
    334,734.76x = 42,887,914,925.34
  5. Step 5: Solve for x
    x = 42,887,914,925.34/334,734.76
  6. Step 6: Final answer
    x = 128,125.07

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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.