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Finding the Fourth Proportional to 176,710.60, 265,065.90 and 120,723.40

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Solution

The fourth proportional to 176,710.60, 265,065.90 and 120,723.40 is: 181,085.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,710.60 : 265,065.90 = 120,723.40 : x
  2. Step 2: Convert to fraction form
    176,710.60/265,065.90 = 120,723.40/x
  3. Step 3: Cross multiply
    176,710.60x = 265,065.90 × 120,723.40
  4. Step 4: Simplify right side
    176,710.60x = 31,999,656,672.06
  5. Step 5: Solve for x
    x = 31,999,656,672.06/176,710.60
  6. Step 6: Final answer
    x = 181,085.10

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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.