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Finding the Fourth Proportional to 157,530.32, 217,384.24 and 93,866.72

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Solution

The fourth proportional to 157,530.32, 217,384.24 and 93,866.72 is: 129,531.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,530.32 : 217,384.24 = 93,866.72 : x
  2. Step 2: Convert to fraction form
    157,530.32/217,384.24 = 93,866.72/x
  3. Step 3: Cross multiply
    157,530.32x = 217,384.24 × 93,866.72
  4. Step 4: Simplify right side
    157,530.32x = 20,405,145,588.49
  5. Step 5: Solve for x
    x = 20,405,145,588.49/157,530.32
  6. Step 6: Final answer
    x = 129,531.54

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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.