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Finding the Fourth Proportional to 369,657.02, 554,403.80 and 103,345.94

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Solution

The fourth proportional to 369,657.02, 554,403.80 and 103,345.94 is: 154,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,657.02 : 554,403.80 = 103,345.94 : x
  2. Step 2: Convert to fraction form
    369,657.02/554,403.80 = 103,345.94/x
  3. Step 3: Cross multiply
    369,657.02x = 554,403.80 × 103,345.94
  4. Step 4: Simplify right side
    369,657.02x = 57,295,381,850.57
  5. Step 5: Solve for x
    x = 57,295,381,850.57/369,657.02
  6. Step 6: Final answer
    x = 154,996.06

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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.