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Finding the Fourth Proportional to 145,893.60, 218,840.40 and 124,898.40

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Solution

The fourth proportional to 145,893.60, 218,840.40 and 124,898.40 is: 187,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,893.60 : 218,840.40 = 124,898.40 : x
  2. Step 2: Convert to fraction form
    145,893.60/218,840.40 = 124,898.40/x
  3. Step 3: Cross multiply
    145,893.60x = 218,840.40 × 124,898.40
  4. Step 4: Simplify right side
    145,893.60x = 27,332,815,815.36
  5. Step 5: Solve for x
    x = 27,332,815,815.36/145,893.60
  6. Step 6: Final answer
    x = 187,347.60

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1.5x scale

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.