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Finding the Fourth Proportional to 116,087.70, 173,839.95 and 76,430.10

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Solution

The fourth proportional to 116,087.70, 173,839.95 and 76,430.10 is: 114,453.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,087.70 : 173,839.95 = 76,430.10 : x
  2. Step 2: Convert to fraction form
    116,087.70/173,839.95 = 76,430.10/x
  3. Step 3: Cross multiply
    116,087.70x = 173,839.95 × 76,430.10
  4. Step 4: Simplify right side
    116,087.70x = 13,286,604,762.50
  5. Step 5: Solve for x
    x = 13,286,604,762.50/116,087.70
  6. Step 6: Final answer
    x = 114,453.17

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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.