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Finding the Fourth Proportional to 56,004.40, 83,909.40 and 47,256.40

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Solution

The fourth proportional to 56,004.40, 83,909.40 and 47,256.40 is: 70,802.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,004.40 : 83,909.40 = 47,256.40 : x
  2. Step 2: Convert to fraction form
    56,004.40/83,909.40 = 47,256.40/x
  3. Step 3: Cross multiply
    56,004.40x = 83,909.40 × 47,256.40
  4. Step 4: Simplify right side
    56,004.40x = 3,965,256,170.16
  5. Step 5: Solve for x
    x = 3,965,256,170.16/56,004.40
  6. Step 6: Final answer
    x = 70,802.58

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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.