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Finding the Fourth Proportional to 117,907.65, 176,513.38 and 77,852.75

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Solution

The fourth proportional to 117,907.65, 176,513.38 and 77,852.75 is: 116,549.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,907.65 : 176,513.38 = 77,852.75 : x
  2. Step 2: Convert to fraction form
    117,907.65/176,513.38 = 77,852.75/x
  3. Step 3: Cross multiply
    117,907.65x = 176,513.38 × 77,852.75
  4. Step 4: Simplify right side
    117,907.65x = 13,742,050,967.60
  5. Step 5: Solve for x
    x = 13,742,050,967.60/117,907.65
  6. Step 6: Final answer
    x = 116,549.27

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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.