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Finding the Fourth Proportional to 157,022.47, 216,712.02 and 89,064.08

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Solution

The fourth proportional to 157,022.47, 216,712.02 and 89,064.08 is: 122,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,022.47 : 216,712.02 = 89,064.08 : x
  2. Step 2: Convert to fraction form
    157,022.47/216,712.02 = 89,064.08/x
  3. Step 3: Cross multiply
    157,022.47x = 216,712.02 × 89,064.08
  4. Step 4: Simplify right side
    157,022.47x = 19,301,256,686.24
  5. Step 5: Solve for x
    x = 19,301,256,686.24/157,022.47
  6. Step 6: Final answer
    x = 122,920.35

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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.