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Finding the Fourth Proportional to 242,735.80, 363,957.90 and 124,637.80

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Solution

The fourth proportional to 242,735.80, 363,957.90 and 124,637.80 is: 186,881.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,735.80 : 363,957.90 = 124,637.80 : x
  2. Step 2: Convert to fraction form
    242,735.80/363,957.90 = 124,637.80/x
  3. Step 3: Cross multiply
    242,735.80x = 363,957.90 × 124,637.80
  4. Step 4: Simplify right side
    242,735.80x = 45,362,911,948.62
  5. Step 5: Solve for x
    x = 45,362,911,948.62/242,735.80
  6. Step 6: Final answer
    x = 186,881.84

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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.