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Finding the Fourth Proportional to 236,595.60, 354,990.60 and 86,907.60

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Solution

The fourth proportional to 236,595.60, 354,990.60 and 86,907.60 is: 130,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,595.60 : 354,990.60 = 86,907.60 : x
  2. Step 2: Convert to fraction form
    236,595.60/354,990.60 = 86,907.60/x
  3. Step 3: Cross multiply
    236,595.60x = 354,990.60 × 86,907.60
  4. Step 4: Simplify right side
    236,595.60x = 30,851,381,068.56
  5. Step 5: Solve for x
    x = 30,851,381,068.56/236,595.60
  6. Step 6: Final answer
    x = 130,397.10

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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.