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Finding the Fourth Proportional to 92,269.64, 127,334.64 and 56,459

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Solution

The fourth proportional to 92,269.64, 127,334.64 and 56,459 is: 77,914.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,269.64 : 127,334.64 = 56,459 : x
  2. Step 2: Convert to fraction form
    92,269.64/127,334.64 = 56,459/x
  3. Step 3: Cross multiply
    92,269.64x = 127,334.64 × 56,459
  4. Step 4: Simplify right side
    92,269.64x = 7,189,186,439.76
  5. Step 5: Solve for x
    x = 7,189,186,439.76/92,269.64
  6. Step 6: Final answer
    x = 77,914.97

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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.