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Finding the Fourth Proportional to 85,802.98, 118,402.14 and 47,562.16

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Solution

The fourth proportional to 85,802.98, 118,402.14 and 47,562.16 is: 65,632.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,802.98 : 118,402.14 = 47,562.16 : x
  2. Step 2: Convert to fraction form
    85,802.98/118,402.14 = 47,562.16/x
  3. Step 3: Cross multiply
    85,802.98x = 118,402.14 × 47,562.16
  4. Step 4: Simplify right side
    85,802.98x = 5,631,461,527.02
  5. Step 5: Solve for x
    x = 5,631,461,527.02/85,802.98
  6. Step 6: Final answer
    x = 65,632.47

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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.