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Finding the Fourth Proportional to 157,752.39, 217,703.79 and 89,779.62

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Solution

The fourth proportional to 157,752.39, 217,703.79 and 89,779.62 is: 123,899.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,752.39 : 217,703.79 = 89,779.62 : x
  2. Step 2: Convert to fraction form
    157,752.39/217,703.79 = 89,779.62/x
  3. Step 3: Cross multiply
    157,752.39x = 217,703.79 × 89,779.62
  4. Step 4: Simplify right side
    157,752.39x = 19,545,363,538.76
  5. Step 5: Solve for x
    x = 19,545,363,538.76/157,752.39
  6. Step 6: Final answer
    x = 123,899.00

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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.