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Finding the Fourth Proportional to 100,941.99, 151,298.16 and 61,411.96

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Solution

The fourth proportional to 100,941.99, 151,298.16 and 61,411.96 is: 92,048.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,941.99 : 151,298.16 = 61,411.96 : x
  2. Step 2: Convert to fraction form
    100,941.99/151,298.16 = 61,411.96/x
  3. Step 3: Cross multiply
    100,941.99x = 151,298.16 × 61,411.96
  4. Step 4: Simplify right side
    100,941.99x = 9,291,516,549.99
  5. Step 5: Solve for x
    x = 9,291,516,549.99/100,941.99
  6. Step 6: Final answer
    x = 92,048.08

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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.