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Finding the Fourth Proportional to 118,637.76, 177,927.84 and 55,417.92

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Solution

The fourth proportional to 118,637.76, 177,927.84 and 55,417.92 is: 83,113.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,637.76 : 177,927.84 = 55,417.92 : x
  2. Step 2: Convert to fraction form
    118,637.76/177,927.84 = 55,417.92/x
  3. Step 3: Cross multiply
    118,637.76x = 177,927.84 × 55,417.92
  4. Step 4: Simplify right side
    118,637.76x = 9,860,390,802.89
  5. Step 5: Solve for x
    x = 9,860,390,802.89/118,637.76
  6. Step 6: Final answer
    x = 83,113.43

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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.