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Finding the Fourth Proportional to 160,658.90, 221,715.18 and 96,984.39

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Solution

The fourth proportional to 160,658.90, 221,715.18 and 96,984.39 is: 133,842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,658.90 : 221,715.18 = 96,984.39 : x
  2. Step 2: Convert to fraction form
    160,658.90/221,715.18 = 96,984.39/x
  3. Step 3: Cross multiply
    160,658.90x = 221,715.18 × 96,984.39
  4. Step 4: Simplify right side
    160,658.90x = 21,502,911,486.04
  5. Step 5: Solve for x
    x = 21,502,911,486.04/160,658.90
  6. Step 6: Final answer
    x = 133,842.02

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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.