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Finding the Fourth Proportional to 105,050.25, 144,928.02 and 64,693.95

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Solution

The fourth proportional to 105,050.25, 144,928.02 and 64,693.95 is: 89,252.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,050.25 : 144,928.02 = 64,693.95 : x
  2. Step 2: Convert to fraction form
    105,050.25/144,928.02 = 64,693.95/x
  3. Step 3: Cross multiply
    105,050.25x = 144,928.02 × 64,693.95
  4. Step 4: Simplify right side
    105,050.25x = 9,375,966,079.48
  5. Step 5: Solve for x
    x = 9,375,966,079.48/105,050.25
  6. Step 6: Final answer
    x = 89,252.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.