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Finding the Fourth Proportional to 369,308.80, 553,864.77 and 103,022.40

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Solution

The fourth proportional to 369,308.80, 553,864.77 and 103,022.40 is: 154,506.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,308.80 : 553,864.77 = 103,022.40 : x
  2. Step 2: Convert to fraction form
    369,308.80/553,864.77 = 103,022.40/x
  3. Step 3: Cross multiply
    369,308.80x = 553,864.77 × 103,022.40
  4. Step 4: Simplify right side
    369,308.80x = 57,060,477,880.85
  5. Step 5: Solve for x
    x = 57,060,477,880.85/369,308.80
  6. Step 6: Final answer
    x = 154,506.14

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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.