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Finding the Fourth Proportional to 127,424.58, 175,846.04 and 70,064.86

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Solution

The fourth proportional to 127,424.58, 175,846.04 and 70,064.86 is: 96,689.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,424.58 : 175,846.04 = 70,064.86 : x
  2. Step 2: Convert to fraction form
    127,424.58/175,846.04 = 70,064.86/x
  3. Step 3: Cross multiply
    127,424.58x = 175,846.04 × 70,064.86
  4. Step 4: Simplify right side
    127,424.58x = 12,320,627,482.10
  5. Step 5: Solve for x
    x = 12,320,627,482.10/127,424.58
  6. Step 6: Final answer
    x = 96,689.57

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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.