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Finding the Fourth Proportional to 157,189.88, 216,888.40 and 93,515.24

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Solution

The fourth proportional to 157,189.88, 216,888.40 and 93,515.24 is: 129,031.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,189.88 : 216,888.40 = 93,515.24 : x
  2. Step 2: Convert to fraction form
    157,189.88/216,888.40 = 93,515.24/x
  3. Step 3: Cross multiply
    157,189.88x = 216,888.40 × 93,515.24
  4. Step 4: Simplify right side
    157,189.88x = 20,282,371,438.33
  5. Step 5: Solve for x
    x = 20,282,371,438.33/157,189.88
  6. Step 6: Final answer
    x = 129,031.02

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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.