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Finding the Fourth Proportional to 256,064,746.04, 384,113,624.02 and 90,047,884.76

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Solution

The fourth proportional to 256,064,746.04, 384,113,624.02 and 90,047,884.76 is: 135,077,631.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,064,746.04 : 384,113,624.02 = 90,047,884.76 : x
  2. Step 2: Convert to fraction form
    256,064,746.04/384,113,624.02 = 90,047,884.76/x
  3. Step 3: Cross multiply
    256,064,746.04x = 384,113,624.02 × 90,047,884.76
  4. Step 4: Simplify right side
    256,064,746.04x = 34,588,619,350,498,928
  5. Step 5: Solve for x
    x = 34,588,619,350,498,928/256,064,746.04
  6. Step 6: Final answer
    x = 135,077,631.28

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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.