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Finding the Fourth Proportional to 118,397.40, 177,538.53 and 39,484.97

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Solution

The fourth proportional to 118,397.40, 177,538.53 and 39,484.97 is: 59,208.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,397.40 : 177,538.53 = 39,484.97 : x
  2. Step 2: Convert to fraction form
    118,397.40/177,538.53 = 39,484.97/x
  3. Step 3: Cross multiply
    118,397.40x = 177,538.53 × 39,484.97
  4. Step 4: Simplify right side
    118,397.40x = 7,010,103,457.04
  5. Step 5: Solve for x
    x = 7,010,103,457.04/118,397.40
  6. Step 6: Final answer
    x = 59,208.26

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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.