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Finding the Fourth Proportional to 593,136.13, 889,728.80 and 172,412.01

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Solution

The fourth proportional to 593,136.13, 889,728.80 and 172,412.01 is: 258,625.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,136.13 : 889,728.80 = 172,412.01 : x
  2. Step 2: Convert to fraction form
    593,136.13/889,728.80 = 172,412.01/x
  3. Step 3: Cross multiply
    593,136.13x = 889,728.80 × 172,412.01
  4. Step 4: Simplify right side
    593,136.13x = 153,399,925,452.18
  5. Step 5: Solve for x
    x = 153,399,925,452.18/593,136.13
  6. Step 6: Final answer
    x = 258,625.16

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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.