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Finding the Fourth Proportional to 7,243,943.04, 9,994,461.36 and 4,342,275.16

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Solution

The fourth proportional to 7,243,943.04, 9,994,461.36 and 4,342,275.16 is: 5,991,032.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243,943.04 : 9,994,461.36 = 4,342,275.16 : x
  2. Step 2: Convert to fraction form
    7,243,943.04/9,994,461.36 = 4,342,275.16/x
  3. Step 3: Cross multiply
    7,243,943.04x = 9,994,461.36 × 4,342,275.16
  4. Step 4: Simplify right side
    7,243,943.04x = 43,398,701,301,107.82
  5. Step 5: Solve for x
    x = 43,398,701,301,107.82/7,243,943.04
  6. Step 6: Final answer
    x = 5,991,032.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.