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Finding the Fourth Proportional to 127,875.86, 191,932.09 and 64,740.34

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Solution

The fourth proportional to 127,875.86, 191,932.09 and 64,740.34 is: 97,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,875.86 : 191,932.09 = 64,740.34 : x
  2. Step 2: Convert to fraction form
    127,875.86/191,932.09 = 64,740.34/x
  3. Step 3: Cross multiply
    127,875.86x = 191,932.09 × 64,740.34
  4. Step 4: Simplify right side
    127,875.86x = 12,425,748,121.83
  5. Step 5: Solve for x
    x = 12,425,748,121.83/127,875.86
  6. Step 6: Final answer
    x = 97,170.40

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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.