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Finding the Fourth Proportional to 176,910.30, 265,365.45 and 77,118.30

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Solution

The fourth proportional to 176,910.30, 265,365.45 and 77,118.30 is: 115,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,910.30 : 265,365.45 = 77,118.30 : x
  2. Step 2: Convert to fraction form
    176,910.30/265,365.45 = 77,118.30/x
  3. Step 3: Cross multiply
    176,910.30x = 265,365.45 × 77,118.30
  4. Step 4: Simplify right side
    176,910.30x = 20,464,532,382.74
  5. Step 5: Solve for x
    x = 20,464,532,382.74/176,910.30
  6. Step 6: Final answer
    x = 115,677.45

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1.5x scale

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.