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Finding the Fourth Proportional to 176,291.88, 243,258.30 and 103,698.06

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Solution

The fourth proportional to 176,291.88, 243,258.30 and 103,698.06 is: 143,088.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,291.88 : 243,258.30 = 103,698.06 : x
  2. Step 2: Convert to fraction form
    176,291.88/243,258.30 = 103,698.06/x
  3. Step 3: Cross multiply
    176,291.88x = 243,258.30 × 103,698.06
  4. Step 4: Simplify right side
    176,291.88x = 25,225,413,788.90
  5. Step 5: Solve for x
    x = 25,225,413,788.90/176,291.88
  6. Step 6: Final answer
    x = 143,088.91

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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.