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Finding the Fourth Proportional to 157,500.52, 217,345.98 and 85,881.94

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Solution

The fourth proportional to 157,500.52, 217,345.98 and 85,881.94 is: 118,514.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,500.52 : 217,345.98 = 85,881.94 : x
  2. Step 2: Convert to fraction form
    157,500.52/217,345.98 = 85,881.94/x
  3. Step 3: Cross multiply
    157,500.52x = 217,345.98 × 85,881.94
  4. Step 4: Simplify right side
    157,500.52x = 18,666,094,192.29
  5. Step 5: Solve for x
    x = 18,666,094,192.29/157,500.52
  6. Step 6: Final answer
    x = 118,514.49

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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.