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Finding the Fourth Proportional to 113,100, 156,084.48 and 62,802.24

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Solution

The fourth proportional to 113,100, 156,084.48 and 62,802.24 is: 86,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,100 : 156,084.48 = 62,802.24 : x
  2. Step 2: Convert to fraction form
    113,100/156,084.48 = 62,802.24/x
  3. Step 3: Cross multiply
    113,100x = 156,084.48 × 62,802.24
  4. Step 4: Simplify right side
    113,100x = 9,802,454,973.24
  5. Step 5: Solve for x
    x = 9,802,454,973.24/113,100
  6. Step 6: Final answer
    x = 86,670.69

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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.