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Finding the Fourth Proportional to 117,810.54, 176,721.48 and 38,923.02

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Solution

The fourth proportional to 117,810.54, 176,721.48 and 38,923.02 is: 58,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,810.54 : 176,721.48 = 38,923.02 : x
  2. Step 2: Convert to fraction form
    117,810.54/176,721.48 = 38,923.02/x
  3. Step 3: Cross multiply
    117,810.54x = 176,721.48 × 38,923.02
  4. Step 4: Simplify right side
    117,810.54x = 6,878,533,700.47
  5. Step 5: Solve for x
    x = 6,878,533,700.47/117,810.54
  6. Step 6: Final answer
    x = 58,386.40

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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.