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Finding the Fourth Proportional to 447,712.80, 671,492.40 and 167,085.60

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Solution

The fourth proportional to 447,712.80, 671,492.40 and 167,085.60 is: 250,599.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,712.80 : 671,492.40 = 167,085.60 : x
  2. Step 2: Convert to fraction form
    447,712.80/671,492.40 = 167,085.60/x
  3. Step 3: Cross multiply
    447,712.80x = 671,492.40 × 167,085.60
  4. Step 4: Simplify right side
    447,712.80x = 112,196,710,549.44
  5. Step 5: Solve for x
    x = 112,196,710,549.44/447,712.80
  6. Step 6: Final answer
    x = 250,599.74

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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.