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Finding the Fourth Proportional to 118,762.17, 178,159.65 and 39,898.95

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Solution

The fourth proportional to 118,762.17, 178,159.65 and 39,898.95 is: 59,853.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,762.17 : 178,159.65 = 39,898.95 : x
  2. Step 2: Convert to fraction form
    118,762.17/178,159.65 = 39,898.95/x
  3. Step 3: Cross multiply
    118,762.17x = 178,159.65 × 39,898.95
  4. Step 4: Simplify right side
    118,762.17x = 7,108,382,967.37
  5. Step 5: Solve for x
    x = 7,108,382,967.37/118,762.17
  6. Step 6: Final answer
    x = 59,853.93

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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.