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Finding the Fourth Proportional to 127,260.16, 175,624.32 and 70,672

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Solution

The fourth proportional to 127,260.16, 175,624.32 and 70,672 is: 97,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,260.16 : 175,624.32 = 70,672 : x
  2. Step 2: Convert to fraction form
    127,260.16/175,624.32 = 70,672/x
  3. Step 3: Cross multiply
    127,260.16x = 175,624.32 × 70,672
  4. Step 4: Simplify right side
    127,260.16x = 12,411,721,943.04
  5. Step 5: Solve for x
    x = 12,411,721,943.04/127,260.16
  6. Step 6: Final answer
    x = 97,530.30

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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.