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Finding the Fourth Proportional to 190,124.92, 285,088.94 and 101,354.58

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Solution

The fourth proportional to 190,124.92, 285,088.94 and 101,354.58 is: 151,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,124.92 : 285,088.94 = 101,354.58 : x
  2. Step 2: Convert to fraction form
    190,124.92/285,088.94 = 101,354.58/x
  3. Step 3: Cross multiply
    190,124.92x = 285,088.94 × 101,354.58
  4. Step 4: Simplify right side
    190,124.92x = 28,895,069,776.35
  5. Step 5: Solve for x
    x = 28,895,069,776.35/190,124.92
  6. Step 6: Final answer
    x = 151,979.39

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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.