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Finding the Fourth Proportional to 157,482.36, 217,317.42 and 89,490.24

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Solution

The fourth proportional to 157,482.36, 217,317.42 and 89,490.24 is: 123,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,482.36 : 217,317.42 = 89,490.24 : x
  2. Step 2: Convert to fraction form
    157,482.36/217,317.42 = 89,490.24/x
  3. Step 3: Cross multiply
    157,482.36x = 217,317.42 × 89,490.24
  4. Step 4: Simplify right side
    157,482.36x = 19,447,788,071.98
  5. Step 5: Solve for x
    x = 19,447,788,071.98/157,482.36
  6. Step 6: Final answer
    x = 123,491.85

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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.