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Finding the Fourth Proportional to 109,215.70, 163,693.95 and 56,598.10

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Solution

The fourth proportional to 109,215.70, 163,693.95 and 56,598.10 is: 84,829.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,215.70 : 163,693.95 = 56,598.10 : x
  2. Step 2: Convert to fraction form
    109,215.70/163,693.95 = 56,598.10/x
  3. Step 3: Cross multiply
    109,215.70x = 163,693.95 × 56,598.10
  4. Step 4: Simplify right side
    109,215.70x = 9,264,766,551.50
  5. Step 5: Solve for x
    x = 9,264,766,551.50/109,215.70
  6. Step 6: Final answer
    x = 84,829.99

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1.5x scale

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.