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Finding the Fourth Proportional to 553,670.60, 830,505.90 and 132,946.48

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Solution

The fourth proportional to 553,670.60, 830,505.90 and 132,946.48 is: 199,419.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,670.60 : 830,505.90 = 132,946.48 : x
  2. Step 2: Convert to fraction form
    553,670.60/830,505.90 = 132,946.48/x
  3. Step 3: Cross multiply
    553,670.60x = 830,505.90 × 132,946.48
  4. Step 4: Simplify right side
    553,670.60x = 110,412,836,024.23
  5. Step 5: Solve for x
    x = 110,412,836,024.23/553,670.60
  6. Step 6: Final answer
    x = 199,419.72

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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.