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Finding the Fourth Proportional to 144,051.80, 215,688.90 and 144,051.80

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Solution

The fourth proportional to 144,051.80, 215,688.90 and 144,051.80 is: 215,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,051.80 : 215,688.90 = 144,051.80 : x
  2. Step 2: Convert to fraction form
    144,051.80/215,688.90 = 144,051.80/x
  3. Step 3: Cross multiply
    144,051.80x = 215,688.90 × 144,051.80
  4. Step 4: Simplify right side
    144,051.80x = 31,070,374,285.02
  5. Step 5: Solve for x
    x = 31,070,374,285.02/144,051.80
  6. Step 6: Final answer
    x = 215,688.90

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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.