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Finding the Fourth Proportional to 554,931.81, 832,398.12 and 134,208.09

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Solution

The fourth proportional to 554,931.81, 832,398.12 and 134,208.09 is: 201,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,931.81 : 832,398.12 = 134,208.09 : x
  2. Step 2: Convert to fraction form
    554,931.81/832,398.12 = 134,208.09/x
  3. Step 3: Cross multiply
    554,931.81x = 832,398.12 × 134,208.09
  4. Step 4: Simplify right side
    554,931.81x = 111,714,561,804.79
  5. Step 5: Solve for x
    x = 111,714,561,804.79/554,931.81
  6. Step 6: Final answer
    x = 201,312.23

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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.