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Finding the Fourth Proportional to 176,571.90, 243,724.95 and 112,909.95

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Solution

The fourth proportional to 176,571.90, 243,724.95 and 112,909.95 is: 155,851.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,571.90 : 243,724.95 = 112,909.95 : x
  2. Step 2: Convert to fraction form
    176,571.90/243,724.95 = 112,909.95/x
  3. Step 3: Cross multiply
    176,571.90x = 243,724.95 × 112,909.95
  4. Step 4: Simplify right side
    176,571.90x = 27,518,971,918.25
  5. Step 5: Solve for x
    x = 27,518,971,918.25/176,571.90
  6. Step 6: Final answer
    x = 155,851.37

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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.