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Finding the Fourth Proportional to 487,994.40, 731,908.53 and 132,925.35

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Solution

The fourth proportional to 487,994.40, 731,908.53 and 132,925.35 is: 199,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,994.40 : 731,908.53 = 132,925.35 : x
  2. Step 2: Convert to fraction form
    487,994.40/731,908.53 = 132,925.35/x
  3. Step 3: Cross multiply
    487,994.40x = 731,908.53 × 132,925.35
  4. Step 4: Simplify right side
    487,994.40x = 97,289,197,518.24
  5. Step 5: Solve for x
    x = 97,289,197,518.24/487,994.40
  6. Step 6: Final answer
    x = 199,365.40

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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.