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Finding the Fourth Proportional to 369,100.80, 553,180.32 and 191,263.68

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Solution

The fourth proportional to 369,100.80, 553,180.32 and 191,263.68 is: 286,651.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,100.80 : 553,180.32 = 191,263.68 : x
  2. Step 2: Convert to fraction form
    369,100.80/553,180.32 = 191,263.68/x
  3. Step 3: Cross multiply
    369,100.80x = 553,180.32 × 191,263.68
  4. Step 4: Simplify right side
    369,100.80x = 105,803,303,706.78
  5. Step 5: Solve for x
    x = 105,803,303,706.78/369,100.80
  6. Step 6: Final answer
    x = 286,651.52

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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.