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Finding the Fourth Proportional to 113,615.79, 156,782.66 and 62,628.92

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Solution

The fourth proportional to 113,615.79, 156,782.66 and 62,628.92 is: 86,423.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,615.79 : 156,782.66 = 62,628.92 : x
  2. Step 2: Convert to fraction form
    113,615.79/156,782.66 = 62,628.92/x
  3. Step 3: Cross multiply
    113,615.79x = 156,782.66 × 62,628.92
  4. Step 4: Simplify right side
    113,615.79x = 9,819,128,670.53
  5. Step 5: Solve for x
    x = 9,819,128,670.53/113,615.79
  6. Step 6: Final answer
    x = 86,423.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.