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Finding the Fourth Proportional to 155,533.83, 233,581.79 and 143,030.79

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Solution

The fourth proportional to 155,533.83, 233,581.79 and 143,030.79 is: 214,804.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,533.83 : 233,581.79 = 143,030.79 : x
  2. Step 2: Convert to fraction form
    155,533.83/233,581.79 = 143,030.79/x
  3. Step 3: Cross multiply
    155,533.83x = 233,581.79 × 143,030.79
  4. Step 4: Simplify right side
    155,533.83x = 33,409,387,953.31
  5. Step 5: Solve for x
    x = 33,409,387,953.31/155,533.83
  6. Step 6: Final answer
    x = 214,804.64

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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.