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Finding the Fourth Proportional to 76,235.40, 114,482.70 and 56,536.20

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Solution

The fourth proportional to 76,235.40, 114,482.70 and 56,536.20 is: 84,900.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,235.40 : 114,482.70 = 56,536.20 : x
  2. Step 2: Convert to fraction form
    76,235.40/114,482.70 = 56,536.20/x
  3. Step 3: Cross multiply
    76,235.40x = 114,482.70 × 56,536.20
  4. Step 4: Simplify right side
    76,235.40x = 6,472,416,823.74
  5. Step 5: Solve for x
    x = 6,472,416,823.74/76,235.40
  6. Step 6: Final answer
    x = 84,900.41

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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.