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Finding the Fourth Proportional to 370,784.61, 556,220.12 and 134,238.69

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Solution

The fourth proportional to 370,784.61, 556,220.12 and 134,238.69 is: 201,373.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,784.61 : 556,220.12 = 134,238.69 : x
  2. Step 2: Convert to fraction form
    370,784.61/556,220.12 = 134,238.69/x
  3. Step 3: Cross multiply
    370,784.61x = 556,220.12 × 134,238.69
  4. Step 4: Simplify right side
    370,784.61x = 74,666,259,589.25
  5. Step 5: Solve for x
    x = 74,666,259,589.25/370,784.61
  6. Step 6: Final answer
    x = 201,373.68

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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.