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Finding the Fourth Proportional to 146,554.40, 219,838.80 and 76,570.40

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Solution

The fourth proportional to 146,554.40, 219,838.80 and 76,570.40 is: 114,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,554.40 : 219,838.80 = 76,570.40 : x
  2. Step 2: Convert to fraction form
    146,554.40/219,838.80 = 76,570.40/x
  3. Step 3: Cross multiply
    146,554.40x = 219,838.80 × 76,570.40
  4. Step 4: Simplify right side
    146,554.40x = 16,833,144,851.52
  5. Step 5: Solve for x
    x = 16,833,144,851.52/146,554.40
  6. Step 6: Final answer
    x = 114,859.36

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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.