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Finding the Fourth Proportional to 128,666.61, 193,014.17 and 44,417.22

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Solution

The fourth proportional to 128,666.61, 193,014.17 and 44,417.22 is: 66,630.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,666.61 : 193,014.17 = 44,417.22 : x
  2. Step 2: Convert to fraction form
    128,666.61/193,014.17 = 44,417.22/x
  3. Step 3: Cross multiply
    128,666.61x = 193,014.17 × 44,417.22
  4. Step 4: Simplify right side
    128,666.61x = 8,573,152,629.92
  5. Step 5: Solve for x
    x = 8,573,152,629.92/128,666.61
  6. Step 6: Final answer
    x = 66,630.75

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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.