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Finding the Fourth Proportional to 387,901,666.08, 581,838,327.18 and 115,265,347.20

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Solution

The fourth proportional to 387,901,666.08, 581,838,327.18 and 115,265,347.20 is: 172,893,809.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,901,666.08 : 581,838,327.18 = 115,265,347.20 : x
  2. Step 2: Convert to fraction form
    387,901,666.08/581,838,327.18 = 115,265,347.20/x
  3. Step 3: Cross multiply
    387,901,666.08x = 581,838,327.18 × 115,265,347.20
  4. Step 4: Simplify right side
    387,901,666.08x = 67,065,796,796,669,896
  5. Step 5: Solve for x
    x = 67,065,796,796,669,896/387,901,666.08
  6. Step 6: Final answer
    x = 172,893,809.59

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