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Finding the Fourth Proportional to 370,707.52, 556,127.16 and 134,380.32

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Solution

The fourth proportional to 370,707.52, 556,127.16 and 134,380.32 is: 201,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,707.52 : 556,127.16 = 134,380.32 : x
  2. Step 2: Convert to fraction form
    370,707.52/556,127.16 = 134,380.32/x
  3. Step 3: Cross multiply
    370,707.52x = 556,127.16 × 134,380.32
  4. Step 4: Simplify right side
    370,707.52x = 74,732,545,721.49
  5. Step 5: Solve for x
    x = 74,732,545,721.49/370,707.52
  6. Step 6: Final answer
    x = 201,594.36

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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.