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Finding the Fourth Proportional to 98,492.94, 147,739.95 and 28,373.94

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Solution

The fourth proportional to 98,492.94, 147,739.95 and 28,373.94 is: 42,561.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,492.94 : 147,739.95 = 28,373.94 : x
  2. Step 2: Convert to fraction form
    98,492.94/147,739.95 = 28,373.94/x
  3. Step 3: Cross multiply
    98,492.94x = 147,739.95 × 28,373.94
  4. Step 4: Simplify right side
    98,492.94x = 4,191,964,476.90
  5. Step 5: Solve for x
    x = 4,191,964,476.90/98,492.94
  6. Step 6: Final answer
    x = 42,561.07

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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.