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Finding the Fourth Proportional to 119,300.97, 178,960.59 and 39,307.80

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Solution

The fourth proportional to 119,300.97, 178,960.59 and 39,307.80 is: 58,964.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,300.97 : 178,960.59 = 39,307.80 : x
  2. Step 2: Convert to fraction form
    119,300.97/178,960.59 = 39,307.80/x
  3. Step 3: Cross multiply
    119,300.97x = 178,960.59 × 39,307.80
  4. Step 4: Simplify right side
    119,300.97x = 7,034,547,079.60
  5. Step 5: Solve for x
    x = 7,034,547,079.60/119,300.97
  6. Step 6: Final answer
    x = 58,964.71

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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.