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Finding the Fourth Proportional to 86,598.90, 129,898.35 and 57,050.10

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Solution

The fourth proportional to 86,598.90, 129,898.35 and 57,050.10 is: 85,575.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,598.90 : 129,898.35 = 57,050.10 : x
  2. Step 2: Convert to fraction form
    86,598.90/129,898.35 = 57,050.10/x
  3. Step 3: Cross multiply
    86,598.90x = 129,898.35 × 57,050.10
  4. Step 4: Simplify right side
    86,598.90x = 7,410,713,857.34
  5. Step 5: Solve for x
    x = 7,410,713,857.34/86,598.90
  6. Step 6: Final answer
    x = 85,575.15

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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.