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Finding the Fourth Proportional to 611,582.99, 917,303.19 and 162,338.76

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Solution

The fourth proportional to 611,582.99, 917,303.19 and 162,338.76 is: 243,489.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,582.99 : 917,303.19 = 162,338.76 : x
  2. Step 2: Convert to fraction form
    611,582.99/917,303.19 = 162,338.76/x
  3. Step 3: Cross multiply
    611,582.99x = 917,303.19 × 162,338.76
  4. Step 4: Simplify right side
    611,582.99x = 148,913,862,408.64
  5. Step 5: Solve for x
    x = 148,913,862,408.64/611,582.99
  6. Step 6: Final answer
    x = 243,489.22

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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.