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Finding the Fourth Proportional to 219,076.62, 328,669.59 and 61,303.70

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Solution

The fourth proportional to 219,076.62, 328,669.59 and 61,303.70 is: 91,970.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,076.62 : 328,669.59 = 61,303.70 : x
  2. Step 2: Convert to fraction form
    219,076.62/328,669.59 = 61,303.70/x
  3. Step 3: Cross multiply
    219,076.62x = 328,669.59 × 61,303.70
  4. Step 4: Simplify right side
    219,076.62x = 20,148,660,301.14
  5. Step 5: Solve for x
    x = 20,148,660,301.14/219,076.62
  6. Step 6: Final answer
    x = 91,970.84

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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.