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Finding the Fourth Proportional to 370,680.30, 556,020.45 and 134,030.70

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Solution

The fourth proportional to 370,680.30, 556,020.45 and 134,030.70 is: 201,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,680.30 : 556,020.45 = 134,030.70 : x
  2. Step 2: Convert to fraction form
    370,680.30/556,020.45 = 134,030.70/x
  3. Step 3: Cross multiply
    370,680.30x = 556,020.45 × 134,030.70
  4. Step 4: Simplify right side
    370,680.30x = 74,523,810,127.82
  5. Step 5: Solve for x
    x = 74,523,810,127.82/370,680.30
  6. Step 6: Final answer
    x = 201,046.05

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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.