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Finding the Fourth Proportional to 112,360.95, 168,045.44 and 99,967.95

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Solution

The fourth proportional to 112,360.95, 168,045.44 and 99,967.95 is: 149,510.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,360.95 : 168,045.44 = 99,967.95 : x
  2. Step 2: Convert to fraction form
    112,360.95/168,045.44 = 99,967.95/x
  3. Step 3: Cross multiply
    112,360.95x = 168,045.44 × 99,967.95
  4. Step 4: Simplify right side
    112,360.95x = 16,799,157,643.81
  5. Step 5: Solve for x
    x = 16,799,157,643.81/112,360.95
  6. Step 6: Final answer
    x = 149,510.64

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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.