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Finding the Fourth Proportional to 85,842.76, 118,461.74 and 47,602.36

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Solution

The fourth proportional to 85,842.76, 118,461.74 and 47,602.36 is: 65,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,842.76 : 118,461.74 = 47,602.36 : x
  2. Step 2: Convert to fraction form
    85,842.76/118,461.74 = 47,602.36/x
  3. Step 3: Cross multiply
    85,842.76x = 118,461.74 × 47,602.36
  4. Step 4: Simplify right side
    85,842.76x = 5,639,058,393.71
  5. Step 5: Solve for x
    x = 5,639,058,393.71/85,842.76
  6. Step 6: Final answer
    x = 65,690.55

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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.