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Finding the Fourth Proportional to 176,913.60, 265,386.60 and 71,710.80

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Solution

The fourth proportional to 176,913.60, 265,386.60 and 71,710.80 is: 107,572.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,913.60 : 265,386.60 = 71,710.80 : x
  2. Step 2: Convert to fraction form
    176,913.60/265,386.60 = 71,710.80/x
  3. Step 3: Cross multiply
    176,913.60x = 265,386.60 × 71,710.80
  4. Step 4: Simplify right side
    176,913.60x = 19,031,085,395.28
  5. Step 5: Solve for x
    x = 19,031,085,395.28/176,913.60
  6. Step 6: Final answer
    x = 107,572.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.