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Finding the Fourth Proportional to 118,117.78, 177,001.64 and 97,206.42

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Solution

The fourth proportional to 118,117.78, 177,001.64 and 97,206.42 is: 145,665.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,117.78 : 177,001.64 = 97,206.42 : x
  2. Step 2: Convert to fraction form
    118,117.78/177,001.64 = 97,206.42/x
  3. Step 3: Cross multiply
    118,117.78x = 177,001.64 × 97,206.42
  4. Step 4: Simplify right side
    118,117.78x = 17,205,695,758.53
  5. Step 5: Solve for x
    x = 17,205,695,758.53/118,117.78
  6. Step 6: Final answer
    x = 145,665.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.