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Finding the Fourth Proportional to 357,818.09, 536,722.73 and 105,089.58

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Solution

The fourth proportional to 357,818.09, 536,722.73 and 105,089.58 is: 157,633.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,818.09 : 536,722.73 = 105,089.58 : x
  2. Step 2: Convert to fraction form
    357,818.09/536,722.73 = 105,089.58/x
  3. Step 3: Cross multiply
    357,818.09x = 536,722.73 × 105,089.58
  4. Step 4: Simplify right side
    357,818.09x = 56,403,965,746.71
  5. Step 5: Solve for x
    x = 56,403,965,746.71/357,818.09
  6. Step 6: Final answer
    x = 157,633.08

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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.