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Finding the Fourth Proportional to 157,510.31, 217,369.70 and 89,530.16

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Solution

The fourth proportional to 157,510.31, 217,369.70 and 89,530.16 is: 123,554.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,510.31 : 217,369.70 = 89,530.16 : x
  2. Step 2: Convert to fraction form
    157,510.31/217,369.70 = 89,530.16/x
  3. Step 3: Cross multiply
    157,510.31x = 217,369.70 × 89,530.16
  4. Step 4: Simplify right side
    157,510.31x = 19,461,143,157.13
  5. Step 5: Solve for x
    x = 19,461,143,157.13/157,510.31
  6. Step 6: Final answer
    x = 123,554.72

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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.