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Finding the Fourth Proportional to 93,291.95, 139,959.78 and 30,962.45

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Solution

The fourth proportional to 93,291.95, 139,959.78 and 30,962.45 is: 46,450.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,291.95 : 139,959.78 = 30,962.45 : x
  2. Step 2: Convert to fraction form
    93,291.95/139,959.78 = 30,962.45/x
  3. Step 3: Cross multiply
    93,291.95x = 139,959.78 × 30,962.45
  4. Step 4: Simplify right side
    93,291.95x = 4,333,496,990.46
  5. Step 5: Solve for x
    x = 4,333,496,990.46/93,291.95
  6. Step 6: Final answer
    x = 46,450.92

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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.