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Finding the Fourth Proportional to 162,492.10, 243,648.08 and 66,496.74

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Solution

The fourth proportional to 162,492.10, 243,648.08 and 66,496.74 is: 99,708.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,492.10 : 243,648.08 = 66,496.74 : x
  2. Step 2: Convert to fraction form
    162,492.10/243,648.08 = 66,496.74/x
  3. Step 3: Cross multiply
    162,492.10x = 243,648.08 × 66,496.74
  4. Step 4: Simplify right side
    162,492.10x = 16,201,803,027.26
  5. Step 5: Solve for x
    x = 16,201,803,027.26/162,492.10
  6. Step 6: Final answer
    x = 99,708.25

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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.