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Finding the Fourth Proportional to 369,074.84, 553,415.40 and 191,140.52

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Solution

The fourth proportional to 369,074.84, 553,415.40 and 191,140.52 is: 286,608.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,074.84 : 553,415.40 = 191,140.52 : x
  2. Step 2: Convert to fraction form
    369,074.84/553,415.40 = 191,140.52/x
  3. Step 3: Cross multiply
    369,074.84x = 553,415.40 × 191,140.52
  4. Step 4: Simplify right side
    369,074.84x = 105,780,107,332.01
  5. Step 5: Solve for x
    x = 105,780,107,332.01/369,074.84
  6. Step 6: Final answer
    x = 286,608.83

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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.