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Finding the Fourth Proportional to 77,681.69, 116,381.66 and 35,596.93

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Solution

The fourth proportional to 77,681.69, 116,381.66 and 35,596.93 is: 53,330.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,681.69 : 116,381.66 = 35,596.93 : x
  2. Step 2: Convert to fraction form
    77,681.69/116,381.66 = 35,596.93/x
  3. Step 3: Cross multiply
    77,681.69x = 116,381.66 × 35,596.93
  4. Step 4: Simplify right side
    77,681.69x = 4,142,829,804.30
  5. Step 5: Solve for x
    x = 4,142,829,804.30/77,681.69
  6. Step 6: Final answer
    x = 53,330.84

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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.