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Finding the Fourth Proportional to 93,457.26, 128,969.01 and 51,016.50

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Solution

The fourth proportional to 93,457.26, 128,969.01 and 51,016.50 is: 70,401.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,457.26 : 128,969.01 = 51,016.50 : x
  2. Step 2: Convert to fraction form
    93,457.26/128,969.01 = 51,016.50/x
  3. Step 3: Cross multiply
    93,457.26x = 128,969.01 × 51,016.50
  4. Step 4: Simplify right side
    93,457.26x = 6,579,547,498.67
  5. Step 5: Solve for x
    x = 6,579,547,498.67/93,457.26
  6. Step 6: Final answer
    x = 70,401.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.