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Finding the Fourth Proportional to 124,492.60, 186,717.30 and 45,566.20

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Solution

The fourth proportional to 124,492.60, 186,717.30 and 45,566.20 is: 68,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,492.60 : 186,717.30 = 45,566.20 : x
  2. Step 2: Convert to fraction form
    124,492.60/186,717.30 = 45,566.20/x
  3. Step 3: Cross multiply
    124,492.60x = 186,717.30 × 45,566.20
  4. Step 4: Simplify right side
    124,492.60x = 8,507,997,835.26
  5. Step 5: Solve for x
    x = 8,507,997,835.26/124,492.60
  6. Step 6: Final answer
    x = 68,341.39

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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.