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Finding the Fourth Proportional to 127,615.68, 176,106.53 and 70,254.54

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Solution

The fourth proportional to 127,615.68, 176,106.53 and 70,254.54 is: 96,949.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,615.68 : 176,106.53 = 70,254.54 : x
  2. Step 2: Convert to fraction form
    127,615.68/176,106.53 = 70,254.54/x
  3. Step 3: Cross multiply
    127,615.68x = 176,106.53 × 70,254.54
  4. Step 4: Simplify right side
    127,615.68x = 12,372,282,904.87
  5. Step 5: Solve for x
    x = 12,372,282,904.87/127,615.68
  6. Step 6: Final answer
    x = 96,949.55

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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.