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Finding the Fourth Proportional to 112,563.84, 168,746.40 and 42,492.36

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Solution

The fourth proportional to 112,563.84, 168,746.40 and 42,492.36 is: 63,701.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,563.84 : 168,746.40 = 42,492.36 : x
  2. Step 2: Convert to fraction form
    112,563.84/168,746.40 = 42,492.36/x
  3. Step 3: Cross multiply
    112,563.84x = 168,746.40 × 42,492.36
  4. Step 4: Simplify right side
    112,563.84x = 7,170,432,777.50
  5. Step 5: Solve for x
    x = 7,170,432,777.50/112,563.84
  6. Step 6: Final answer
    x = 63,701.03

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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.