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Finding the Fourth Proportional to 346,321.68, 519,534.45 and 121,642.52

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Solution

The fourth proportional to 346,321.68, 519,534.45 and 121,642.52 is: 182,482.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,321.68 : 519,534.45 = 121,642.52 : x
  2. Step 2: Convert to fraction form
    346,321.68/519,534.45 = 121,642.52/x
  3. Step 3: Cross multiply
    346,321.68x = 519,534.45 × 121,642.52
  4. Step 4: Simplify right side
    346,321.68x = 63,197,477,127.14
  5. Step 5: Solve for x
    x = 63,197,477,127.14/346,321.68
  6. Step 6: Final answer
    x = 182,482.01

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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.