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Finding the Fourth Proportional to 145,893.81, 218,753.10 and 57,041.45

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Solution

The fourth proportional to 145,893.81, 218,753.10 and 57,041.45 is: 85,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,893.81 : 218,753.10 = 57,041.45 : x
  2. Step 2: Convert to fraction form
    145,893.81/218,753.10 = 57,041.45/x
  3. Step 3: Cross multiply
    145,893.81x = 218,753.10 × 57,041.45
  4. Step 4: Simplify right side
    145,893.81x = 12,477,992,922.23
  5. Step 5: Solve for x
    x = 12,477,992,922.23/145,893.81
  6. Step 6: Final answer
    x = 85,527.91

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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.