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Finding the Fourth Proportional to 328,715.01, 493,089.93 and 104,099.18

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Solution

The fourth proportional to 328,715.01, 493,089.93 and 104,099.18 is: 156,154.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,715.01 : 493,089.93 = 104,099.18 : x
  2. Step 2: Convert to fraction form
    328,715.01/493,089.93 = 104,099.18/x
  3. Step 3: Cross multiply
    328,715.01x = 493,089.93 × 104,099.18
  4. Step 4: Simplify right side
    328,715.01x = 51,330,254,913.81
  5. Step 5: Solve for x
    x = 51,330,254,913.81/328,715.01
  6. Step 6: Final answer
    x = 156,154.28

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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.