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Finding the Fourth Proportional to 122,661.18, 183,859.54 and 59,347.53

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Solution

The fourth proportional to 122,661.18, 183,859.54 and 59,347.53 is: 88,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,661.18 : 183,859.54 = 59,347.53 : x
  2. Step 2: Convert to fraction form
    122,661.18/183,859.54 = 59,347.53/x
  3. Step 3: Cross multiply
    122,661.18x = 183,859.54 × 59,347.53
  4. Step 4: Simplify right side
    122,661.18x = 10,911,609,417.57
  5. Step 5: Solve for x
    x = 10,911,609,417.57/122,661.18
  6. Step 6: Final answer
    x = 88,957.32

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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.