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Finding the Fourth Proportional to 176,281.85, 243,271.80 and 99,798.95

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Solution

The fourth proportional to 176,281.85, 243,271.80 and 99,798.95 is: 137,724.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,281.85 : 243,271.80 = 99,798.95 : x
  2. Step 2: Convert to fraction form
    176,281.85/243,271.80 = 99,798.95/x
  3. Step 3: Cross multiply
    176,281.85x = 243,271.80 × 99,798.95
  4. Step 4: Simplify right side
    176,281.85x = 24,278,268,988.25
  5. Step 5: Solve for x
    x = 24,278,268,988.25/176,281.85
  6. Step 6: Final answer
    x = 137,724.16

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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.