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Finding the Fourth Proportional to 240,897.60, 360,971.10 and 91,056.15

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Solution

The fourth proportional to 240,897.60, 360,971.10 and 91,056.15 is: 136,442.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,897.60 : 360,971.10 = 91,056.15 : x
  2. Step 2: Convert to fraction form
    240,897.60/360,971.10 = 91,056.15/x
  3. Step 3: Cross multiply
    240,897.60x = 360,971.10 × 91,056.15
  4. Step 4: Simplify right side
    240,897.60x = 32,868,638,627.27
  5. Step 5: Solve for x
    x = 32,868,638,627.27/240,897.60
  6. Step 6: Final answer
    x = 136,442.37

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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.