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Finding the Fourth Proportional to 612,502.36, 918,693.68 and 186,041.89

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Solution

The fourth proportional to 612,502.36, 918,693.68 and 186,041.89 is: 279,044.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,502.36 : 918,693.68 = 186,041.89 : x
  2. Step 2: Convert to fraction form
    612,502.36/918,693.68 = 186,041.89/x
  3. Step 3: Cross multiply
    612,502.36x = 918,693.68 × 186,041.89
  4. Step 4: Simplify right side
    612,502.36x = 170,915,509,430.46
  5. Step 5: Solve for x
    x = 170,915,509,430.46/612,502.36
  6. Step 6: Final answer
    x = 279,044.65

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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.