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Finding the Fourth Proportional to 243,293.76, 364,994.72 and 74,831.04

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Solution

The fourth proportional to 243,293.76, 364,994.72 and 74,831.04 is: 112,263.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,293.76 : 364,994.72 = 74,831.04 : x
  2. Step 2: Convert to fraction form
    243,293.76/364,994.72 = 74,831.04/x
  3. Step 3: Cross multiply
    243,293.76x = 364,994.72 × 74,831.04
  4. Step 4: Simplify right side
    243,293.76x = 27,312,934,492.11
  5. Step 5: Solve for x
    x = 27,312,934,492.11/243,293.76
  6. Step 6: Final answer
    x = 112,263.19

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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.