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Finding the Fourth Proportional to 142,881.76, 214,330.74 and 43,055.74

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Solution

The fourth proportional to 142,881.76, 214,330.74 and 43,055.74 is: 64,586.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,881.76 : 214,330.74 = 43,055.74 : x
  2. Step 2: Convert to fraction form
    142,881.76/214,330.74 = 43,055.74/x
  3. Step 3: Cross multiply
    142,881.76x = 214,330.74 × 43,055.74
  4. Step 4: Simplify right side
    142,881.76x = 9,228,168,615.45
  5. Step 5: Solve for x
    x = 9,228,168,615.45/142,881.76
  6. Step 6: Final answer
    x = 64,586.05

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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.