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Finding the Fourth Proportional to 102,577.60, 153,866.40 and 47,281.60

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Solution

The fourth proportional to 102,577.60, 153,866.40 and 47,281.60 is: 70,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,577.60 : 153,866.40 = 47,281.60 : x
  2. Step 2: Convert to fraction form
    102,577.60/153,866.40 = 47,281.60/x
  3. Step 3: Cross multiply
    102,577.60x = 153,866.40 × 47,281.60
  4. Step 4: Simplify right side
    102,577.60x = 7,275,049,578.24
  5. Step 5: Solve for x
    x = 7,275,049,578.24/102,577.60
  6. Step 6: Final answer
    x = 70,922.40

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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.