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Finding the Fourth Proportional to 160,657.17, 221,703.53 and 89,036.57

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Solution

The fourth proportional to 160,657.17, 221,703.53 and 89,036.57 is: 122,868.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,657.17 : 221,703.53 = 89,036.57 : x
  2. Step 2: Convert to fraction form
    160,657.17/221,703.53 = 89,036.57/x
  3. Step 3: Cross multiply
    160,657.17x = 221,703.53 × 89,036.57
  4. Step 4: Simplify right side
    160,657.17x = 19,739,720,314.39
  5. Step 5: Solve for x
    x = 19,739,720,314.39/160,657.17
  6. Step 6: Final answer
    x = 122,868.59

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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.