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Finding the Fourth Proportional to 109,970.79, 151,759.71 and 62,223.18

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Solution

The fourth proportional to 109,970.79, 151,759.71 and 62,223.18 is: 85,868.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,970.79 : 151,759.71 = 62,223.18 : x
  2. Step 2: Convert to fraction form
    109,970.79/151,759.71 = 62,223.18/x
  3. Step 3: Cross multiply
    109,970.79x = 151,759.71 × 62,223.18
  4. Step 4: Simplify right side
    109,970.79x = 9,442,971,752.08
  5. Step 5: Solve for x
    x = 9,442,971,752.08/109,970.79
  6. Step 6: Final answer
    x = 85,868.00

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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.