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Finding the Fourth Proportional to 369,084.71, 553,430.22 and 191,150.39

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Solution

The fourth proportional to 369,084.71, 553,430.22 and 191,150.39 is: 286,623.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,084.71 : 553,430.22 = 191,150.39 : x
  2. Step 2: Convert to fraction form
    369,084.71/553,430.22 = 191,150.39/x
  3. Step 3: Cross multiply
    369,084.71x = 553,430.22 × 191,150.39
  4. Step 4: Simplify right side
    369,084.71x = 105,788,399,623.64
  5. Step 5: Solve for x
    x = 105,788,399,623.64/369,084.71
  6. Step 6: Final answer
    x = 286,623.63

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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.