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Finding the Fourth Proportional to 526,866.09, 790,271.29 and 147,813.22

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Solution

The fourth proportional to 526,866.09, 790,271.29 and 147,813.22 is: 221,712.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,866.09 : 790,271.29 = 147,813.22 : x
  2. Step 2: Convert to fraction form
    526,866.09/790,271.29 = 147,813.22/x
  3. Step 3: Cross multiply
    526,866.09x = 790,271.29 × 147,813.22
  4. Step 4: Simplify right side
    526,866.09x = 116,812,544,048.45
  5. Step 5: Solve for x
    x = 116,812,544,048.45/526,866.09
  6. Step 6: Final answer
    x = 221,712.02

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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.