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Finding the Fourth Proportional to 358,449, 537,674.72 and 105,732.66

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Solution

The fourth proportional to 358,449, 537,674.72 and 105,732.66 is: 158,599.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,449 : 537,674.72 = 105,732.66 : x
  2. Step 2: Convert to fraction form
    358,449/537,674.72 = 105,732.66/x
  3. Step 3: Cross multiply
    358,449x = 537,674.72 × 105,732.66
  4. Step 4: Simplify right side
    358,449x = 56,849,778,360.36
  5. Step 5: Solve for x
    x = 56,849,778,360.36/358,449
  6. Step 6: Final answer
    x = 158,599.35

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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.