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Finding the Fourth Proportional to 480,075.72, 720,211.90 and 164,557.16

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Solution

The fourth proportional to 480,075.72, 720,211.90 and 164,557.16 is: 246,869.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,075.72 : 720,211.90 = 164,557.16 : x
  2. Step 2: Convert to fraction form
    480,075.72/720,211.90 = 164,557.16/x
  3. Step 3: Cross multiply
    480,075.72x = 720,211.90 × 164,557.16
  4. Step 4: Simplify right side
    480,075.72x = 118,516,024,862.20
  5. Step 5: Solve for x
    x = 118,516,024,862.20/480,075.72
  6. Step 6: Final answer
    x = 246,869.44

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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.