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Finding the Fourth Proportional to 292,981.60, 439,472.40 and 95,989.60

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Solution

The fourth proportional to 292,981.60, 439,472.40 and 95,989.60 is: 143,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,981.60 : 439,472.40 = 95,989.60 : x
  2. Step 2: Convert to fraction form
    292,981.60/439,472.40 = 95,989.60/x
  3. Step 3: Cross multiply
    292,981.60x = 439,472.40 × 95,989.60
  4. Step 4: Simplify right side
    292,981.60x = 42,184,779,887.04
  5. Step 5: Solve for x
    x = 42,184,779,887.04/292,981.60
  6. Step 6: Final answer
    x = 143,984.40

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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.