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Finding the Fourth Proportional to 98,859.40, 148,289.10 and 93,027.40

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Solution

The fourth proportional to 98,859.40, 148,289.10 and 93,027.40 is: 139,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,859.40 : 148,289.10 = 93,027.40 : x
  2. Step 2: Convert to fraction form
    98,859.40/148,289.10 = 93,027.40/x
  3. Step 3: Cross multiply
    98,859.40x = 148,289.10 × 93,027.40
  4. Step 4: Simplify right side
    98,859.40x = 13,794,949,421.34
  5. Step 5: Solve for x
    x = 13,794,949,421.34/98,859.40
  6. Step 6: Final answer
    x = 139,541.10

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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.