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Finding the Fourth Proportional to 93,775.76, 140,681.40 and 30,590.60

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Solution

The fourth proportional to 93,775.76, 140,681.40 and 30,590.60 is: 45,891.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,775.76 : 140,681.40 = 30,590.60 : x
  2. Step 2: Convert to fraction form
    93,775.76/140,681.40 = 30,590.60/x
  3. Step 3: Cross multiply
    93,775.76x = 140,681.40 × 30,590.60
  4. Step 4: Simplify right side
    93,775.76x = 4,303,528,434.84
  5. Step 5: Solve for x
    x = 4,303,528,434.84/93,775.76
  6. Step 6: Final answer
    x = 45,891.69

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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.