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Finding the Fourth Proportional to 118,468.40, 177,637.80 and 48,268.40

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Solution

The fourth proportional to 118,468.40, 177,637.80 and 48,268.40 is: 72,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,468.40 : 177,637.80 = 48,268.40 : x
  2. Step 2: Convert to fraction form
    118,468.40/177,637.80 = 48,268.40/x
  3. Step 3: Cross multiply
    118,468.40x = 177,637.80 × 48,268.40
  4. Step 4: Simplify right side
    118,468.40x = 8,574,292,385.52
  5. Step 5: Solve for x
    x = 8,574,292,385.52/118,468.40
  6. Step 6: Final answer
    x = 72,376.20

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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.