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Finding the Fourth Proportional to 330,333.93, 495,574.73 and 105,707.85

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Solution

The fourth proportional to 330,333.93, 495,574.73 and 105,707.85 is: 158,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,333.93 : 495,574.73 = 105,707.85 : x
  2. Step 2: Convert to fraction form
    330,333.93/495,574.73 = 105,707.85/x
  3. Step 3: Cross multiply
    330,333.93x = 495,574.73 × 105,707.85
  4. Step 4: Simplify right side
    330,333.93x = 52,386,139,222.63
  5. Step 5: Solve for x
    x = 52,386,139,222.63/330,333.93
  6. Step 6: Final answer
    x = 158,585.40

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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.