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Finding the Fourth Proportional to 145,152, 217,572.48 and 60,890.94

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Solution

The fourth proportional to 145,152, 217,572.48 and 60,890.94 is: 91,271.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,152 : 217,572.48 = 60,890.94 : x
  2. Step 2: Convert to fraction form
    145,152/217,572.48 = 60,890.94/x
  3. Step 3: Cross multiply
    145,152x = 217,572.48 × 60,890.94
  4. Step 4: Simplify right side
    145,152x = 13,248,192,825.33
  5. Step 5: Solve for x
    x = 13,248,192,825.33/145,152
  6. Step 6: Final answer
    x = 91,271.17

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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.