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Finding the Fourth Proportional to 358,133.76, 537,111.30 and 105,363.92

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Solution

The fourth proportional to 358,133.76, 537,111.30 and 105,363.92 is: 158,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,133.76 : 537,111.30 = 105,363.92 : x
  2. Step 2: Convert to fraction form
    358,133.76/537,111.30 = 105,363.92/x
  3. Step 3: Cross multiply
    358,133.76x = 537,111.30 × 105,363.92
  4. Step 4: Simplify right side
    358,133.76x = 56,592,152,044.30
  5. Step 5: Solve for x
    x = 56,592,152,044.30/358,133.76
  6. Step 6: Final answer
    x = 158,019.60

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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.