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Finding the Fourth Proportional to 193,547,810.40, 290,321,720.40 and 193,547,810.40

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Solution

The fourth proportional to 193,547,810.40, 290,321,720.40 and 193,547,810.40 is: 290,321,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,547,810.40 : 290,321,720.40 = 193,547,810.40 : x
  2. Step 2: Convert to fraction form
    193,547,810.40/290,321,720.40 = 193,547,810.40/x
  3. Step 3: Cross multiply
    193,547,810.40x = 290,321,720.40 × 193,547,810.40
  4. Step 4: Simplify right side
    193,547,810.40x = 56,191,133,294,981,008
  5. Step 5: Solve for x
    x = 56,191,133,294,981,008/193,547,810.40
  6. Step 6: Final answer
    x = 290,321,720.40

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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.