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Finding the Fourth Proportional to 97,233,268.80, 145,758,664.80 and 36,689,678.40

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Solution

The fourth proportional to 97,233,268.80, 145,758,664.80 and 36,689,678.40 is: 55,000,090.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,233,268.80 : 145,758,664.80 = 36,689,678.40 : x
  2. Step 2: Convert to fraction form
    97,233,268.80/145,758,664.80 = 36,689,678.40/x
  3. Step 3: Cross multiply
    97,233,268.80x = 145,758,664.80 × 36,689,678.40
  4. Step 4: Simplify right side
    97,233,268.80x = 5,347,838,535,525,401
  5. Step 5: Solve for x
    x = 5,347,838,535,525,401/97,233,268.80
  6. Step 6: Final answer
    x = 55,000,090.01

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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.