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Finding the Fourth Proportional to 98,784.30, 147,848.40 and 98,784.30

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Solution

The fourth proportional to 98,784.30, 147,848.40 and 98,784.30 is: 147,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,784.30 : 147,848.40 = 98,784.30 : x
  2. Step 2: Convert to fraction form
    98,784.30/147,848.40 = 98,784.30/x
  3. Step 3: Cross multiply
    98,784.30x = 147,848.40 × 98,784.30
  4. Step 4: Simplify right side
    98,784.30x = 14,605,100,700.12
  5. Step 5: Solve for x
    x = 14,605,100,700.12/98,784.30
  6. Step 6: Final answer
    x = 147,848.40

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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.