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Finding the Fourth Proportional to 115,188.96, 172,798.08 and 45,059.28

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Solution

The fourth proportional to 115,188.96, 172,798.08 and 45,059.28 is: 67,594.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,188.96 : 172,798.08 = 45,059.28 : x
  2. Step 2: Convert to fraction form
    115,188.96/172,798.08 = 45,059.28/x
  3. Step 3: Cross multiply
    115,188.96x = 172,798.08 × 45,059.28
  4. Step 4: Simplify right side
    115,188.96x = 7,786,157,070.18
  5. Step 5: Solve for x
    x = 7,786,157,070.18/115,188.96
  6. Step 6: Final answer
    x = 67,594.65

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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.