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Finding the Fourth Proportional to 357,763.86, 536,664.16 and 91,526.66

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Solution

The fourth proportional to 357,763.86, 536,664.16 and 91,526.66 is: 137,294.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,763.86 : 536,664.16 = 91,526.66 : x
  2. Step 2: Convert to fraction form
    357,763.86/536,664.16 = 91,526.66/x
  3. Step 3: Cross multiply
    357,763.86x = 536,664.16 × 91,526.66
  4. Step 4: Simplify right side
    357,763.86x = 49,119,078,106.51
  5. Step 5: Solve for x
    x = 49,119,078,106.51/357,763.86
  6. Step 6: Final answer
    x = 137,294.69

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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.