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Finding the Fourth Proportional to 127,577.28, 176,039.28 and 70,980.96

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Solution

The fourth proportional to 127,577.28, 176,039.28 and 70,980.96 is: 97,944.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,577.28 : 176,039.28 = 70,980.96 : x
  2. Step 2: Convert to fraction form
    127,577.28/176,039.28 = 70,980.96/x
  3. Step 3: Cross multiply
    127,577.28x = 176,039.28 × 70,980.96
  4. Step 4: Simplify right side
    127,577.28x = 12,495,437,092.11
  5. Step 5: Solve for x
    x = 12,495,437,092.11/127,577.28
  6. Step 6: Final answer
    x = 97,944.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.