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Finding the Fourth Proportional to 114,025.70, 171,038.55 and 76,700.90

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Solution

The fourth proportional to 114,025.70, 171,038.55 and 76,700.90 is: 115,051.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,025.70 : 171,038.55 = 76,700.90 : x
  2. Step 2: Convert to fraction form
    114,025.70/171,038.55 = 76,700.90/x
  3. Step 3: Cross multiply
    114,025.70x = 171,038.55 × 76,700.90
  4. Step 4: Simplify right side
    114,025.70x = 13,118,810,719.70
  5. Step 5: Solve for x
    x = 13,118,810,719.70/114,025.70
  6. Step 6: Final answer
    x = 115,051.35

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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.