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Finding the Fourth Proportional to 157,594.95, 217,472.55 and 89,602.54

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Solution

The fourth proportional to 157,594.95, 217,472.55 and 89,602.54 is: 123,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,594.95 : 217,472.55 = 89,602.54 : x
  2. Step 2: Convert to fraction form
    157,594.95/217,472.55 = 89,602.54/x
  3. Step 3: Cross multiply
    157,594.95x = 217,472.55 × 89,602.54
  4. Step 4: Simplify right side
    157,594.95x = 19,486,091,980.59
  5. Step 5: Solve for x
    x = 19,486,091,980.59/157,594.95
  6. Step 6: Final answer
    x = 123,646.68

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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.