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Finding the Fourth Proportional to 98,411,979.40, 147,617,969.10 and 98,411,979.40

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Solution

The fourth proportional to 98,411,979.40, 147,617,969.10 and 98,411,979.40 is: 147,617,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,411,979.40 : 147,617,969.10 = 98,411,979.40 : x
  2. Step 2: Convert to fraction form
    98,411,979.40/147,617,969.10 = 98,411,979.40/x
  3. Step 3: Cross multiply
    98,411,979.40x = 147,617,969.10 × 98,411,979.40
  4. Step 4: Simplify right side
    98,411,979.40x = 14,527,376,534,139,036
  5. Step 5: Solve for x
    x = 14,527,376,534,139,036/98,411,979.40
  6. Step 6: Final answer
    x = 147,617,969.10

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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.